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diff --git a/man3p/wcsrtombs.3p b/man3p/wcsrtombs.3p new file mode 100644 index 000000000..f8ea7db0d --- /dev/null +++ b/man3p/wcsrtombs.3p @@ -0,0 +1,111 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "WCSRTOMBS" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" wcsrtombs +.SH NAME +wcsrtombs \- convert a wide-character string to a character string +(restartable) +.SH SYNOPSIS +.LP +\fB#include <wchar.h> +.br +.sp +size_t wcsrtombs(char *restrict\fP \fIdst\fP\fB, const wchar_t **restrict\fP +\fIsrc\fP\fB, +.br +\ \ \ \ \ \ size_t\fP \fIlen\fP\fB, mbstate_t *restrict\fP \fIps\fP\fB); +.br +\fP +.SH DESCRIPTION +.LP +The \fIwcsrtombs\fP() function shall convert a sequence of wide characters +from the array indirectly pointed to by \fIsrc\fP +into a sequence of corresponding characters, beginning in the conversion +state described by the object pointed to by \fIps\fP. If +\fIdst\fP is not a null pointer, the converted characters shall then +be stored into the array pointed to by \fIdst\fP. Conversion +continues up to and including a terminating null wide character, which +shall also be stored. Conversion shall stop earlier in the +following cases: +.IP " *" 3 +When a code is reached that does not correspond to a valid character +.LP +.IP " *" 3 +When the next character would exceed the limit of \fIlen\fP total +bytes to be stored in the array pointed to by \fIdst\fP (and +\fIdst\fP is not a null pointer) +.LP +.LP +Each conversion shall take place as if by a call to the \fIwcrtomb\fP() +function. +.LP +If \fIdst\fP is not a null pointer, the pointer object pointed to +by \fIsrc\fP shall be assigned either a null pointer (if +conversion stopped due to reaching a terminating null wide character) +or the address just past the last wide character converted +(if any). If conversion stopped due to reaching a terminating null +wide character, the resulting state described shall be the +initial conversion state. +.LP +If \fIps\fP is a null pointer, the \fIwcsrtombs\fP() function shall +use its own internal \fBmbstate_t\fP object, which is +initialized at program start-up to the initial conversion state. Otherwise, +the \fBmbstate_t\fP object pointed to by \fIps\fP +shall be used to completely describe the current conversion state +of the associated character sequence. The implementation shall +behave as if no function defined in this volume of IEEE\ Std\ 1003.1-2001 +calls \fIwcsrtombs\fP(). +.LP +If +the application uses any of the _POSIX_THREAD_SAFE_FUNCTIONS or _POSIX_THREADS +functions, the application shall ensure that the +\fIwcsrtombs\fP() function is called with a non-NULL \fIps\fP argument. +.LP +The behavior of this function shall be affected by the \fILC_CTYPE\fP +category of the current locale. +.SH RETURN VALUE +.LP +If conversion stops because a code is reached that does not correspond +to a valid character, an encoding error occurs. In this +case, the \fIwcsrtombs\fP() function shall store the value of the +macro [EILSEQ] in \fIerrno\fP and return (\fBsize_t\fP)-1; the +conversion state is undefined. Otherwise, it shall return the number +of bytes in the resulting character sequence, not including +the terminating null (if any). +.SH ERRORS +.LP +The \fIwcsrtombs\fP() function may fail if: +.TP 7 +.B EINVAL +\fIps\fP points to an object that contains an invalid conversion state. +.TP 7 +.B EILSEQ +A wide-character code does not correspond to a valid character. +.sp +.LP +\fIThe following sections are informative.\fP +.SH EXAMPLES +.LP +None. +.SH APPLICATION USAGE +.LP +None. +.SH RATIONALE +.LP +None. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +\fImbsinit\fP() , \fIwcrtomb\fP() , the Base Definitions volume of +IEEE\ Std\ 1003.1-2001, \fI<wchar.h>\fP +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. In the +event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . |